Wrench.



' UNITED STATES PATENT OFFICE.

HARRY A. DEITERS, or srnuonn', WEST VIRGINIA, nssieuoa or ONE-HALF TooTTo EARTH, or COOLYILLE'OHIO.

WRENCH.

SPECIFICATION formingpart of Letters Patent No. 634,661, dated October10, 1899.

Application filed August 41,1899. Serial No. 726,176. (No model.)

, ated to adjust it to pipes, nuts, and other ob-' I jects and adaptedto grip the same firmly with a pressure coextensive with the resistanceof such object, so that there will be no liability of the same slippingbetween the jaws.

The invention consists in the construction and novel combination andarrangement of parts hereinafter fully described, illustrated in theaccompanying drawings, 'and pointed out in the claims hereto appended.

In the drawings, Figure l is a perspective View of a wrench constructedin accordance with this invention. Fig. 2 is a longitudinal sectionalview of the same. Fig. 3 is a transverse sectional view on line 3 3 ofFig. 2.

Like numerals of reference designate corresponding parts in all thefigures of the drawings. j v V l designatesa fixed or rigid jaw providedwith a short shank 2, cooperating with a slidingor movable jaw 3 andhaving its shank 3 5 bifurcated at 4 to receive a bar or handle 5,

which operates as a lever and which is connected with the movable jaw.The fixed jaw 1 extends from one side of the shank 2, and the lever orhandle 5 is provided with a latorally-extending head 6, forming aneccentric and provided with a curved slot 7 which receives a pivot 8,whereby the lever is connected with and 'is adapted to actuate themovable jaw 3. The lever is fulcrumed at 5 the inner end of the head ona pivot or pin 9, which passes through the bifurcation a of the shank 2.The movable jaw 3 is connected with the shank 2 of the fixed jaw 1 by asubstantially U-shaped yoke 10, conforming to the configuration of thesaid shank 2, and

composed ofparallel sides and a rear connectin g portion which isarranged on the back of able plates 11 and 12,

the same.

the shank of the fixed jaw 1. The nut or other object to be engaged bythe wrench is placed between the two jaws, and by forcing the leverforward the jaws are carried into engagement with such nut, which isfirmly gripped, and the greater the resistance ofiered by the nut orother object the greater will be the clamping action of the jaws.

The head which extends laterally from the lever forms one arm of thesame, and the body of the lever, which forms the other arm, by beingmuch'longer, than the head enables the lever to exerta powerful grippingaction. 6 5

The jaws 1 and 3 are provided with toothed or serrated engaging facesformed by removhaving dovetailed grooves 13 and 14: interlocked withcorresponding tongues of the jaws. These plates are adapted to bereadily removed, so that a set having straight faces, like those shownin the drawings, for engaging flat surfaces may be employed, or plateshaving curved faces for engaging rounded surfaces may be substituted forthe same to adapt the wrench for operating on pipes and rods.

It will be seen that the wrench is exceedingly simple and inexpensive inconstruction, that it possesses great strength and durabil- 8o ity, andthat it is capable of firmly gripping an object and of being readilyadjusted to It will also be apparent that the pressure exerted on thenut or other object operates to force the jaws into engagement with thesame. i 7

That is claimed is- A wrench comprising a fixed jaw having a straightshank with a rear bifurcated end, a movable jaw slidingly connected tothe said 0 shank of the fixed jaw, a lever fulcrurned in the rearbifurcated end of the said shank and having a head with a curved slottherein, and a fastening device extending through the rear end'of thesliding jaw andthe end slot of the head of the lever.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

HARRY A. DEITERS.

Witnesses: I

W. L. STARKEY, CLARENCE WILLIAMSON.

